Is there a count function in Stata?
count counts the number of observations that satisfy the specified conditions. If no conditions are specified, count displays the number of observations in the data. count may strike you as an almost useless command, but it can be one of Stata’s handiest. We have 641 observations.
What is the by command in Stata?
bysort varlist1[(varlist2)] [ , rc0 ] : stata cmd. Description. Most Stata commands allow the by prefix, which repeats the command for each group of observations for which the values of the variables in varlist are the same. by without the sort option requires that the data be sorted by varlist; see [D] sort.
How do you use command count?
Use the COUNT function to get the number of entries in a number field that is in a range or array of numbers. For example, you can enter the following formula to count the numbers in the range A1:A20: =COUNT(A1:A20). In this example, if five of the cells in the range contain numbers, the result is 5.
What is R () in Stata?
Notice that instead of using the actual value of the mean of read in this command, we used the name of the returned result (i.e. r(mean)), Stata knows when it sees r(mean) that we actually mean the value stored in that system variable. This is because Stata uses the r(…) as a placeholder for a real value.
What is Count command?
COUNT creates a numeric variable that, for each case, counts the occurrences of the same value (or list of values) across a list of variables. The new variable is called the target variable. The variables and values that are counted are the criterion variables and values.
How many variables are in a dataset Stata?
There’s a limit of 2,047 variables in Stata/IC, 32,767 in Stata/SE, and 120,000 in Stata/MP. You can have as many observations as your computer’s memory will allow, provided you don’t go too far above 2 billion cases with Stata/SE and 1 trillion with Stata/MP.
What is countcount in Stata?
count counts the number of observations that satisfy the specified conditions. If no conditions are specified, count displays the number of observations in the data. count may strike you as an almost useless command, but it can be one of Stata’s handiest.
Does Stata use Egen or anycount when values vary?
I found this Stata: Using egen, anycount() when values vary for each observationhowever Stata freezes as my dataset is quite large (100.000 rows and 3000 columns). Any help will be very appreciated 🙂 Solution based on the response of William * number of total valid responses (0s and 1s, excluding .
What is the current version of Stata?
The current version of Stata is 15.1. Please specify if you are using an earlier version; otherwise, the answer to your question may refer to commands or features unavailable to you.